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Cheap flights from Ontario (ONT) to Costa Rica from $135

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/29. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
ONT — SJO
May 6 — May 131
From?
To?
Mon 5/6
Mon 5/13
1 adult, Economy
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How far in advance should I book a flight from Ontario to Costa Rica?

To save up to 21% on this flight, we recommend booking at least 50 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Ontario to Costa Rica from $482 1-2 weeks out and tickets from $511 for flights departing within the next 72 hours.

What is the cheapest month to fly from Ontario to Costa Rica?

The best pricing can be found in the month of September. Prices to Costa Rica from Ontario average $441. You can even find prices in September for less than $441, as users have found deals to Costa Rica from as low as $158. The month of December appears to be one of the more expensive times to travel to Costa Rica from Ontario. Flying in the targeted month can save you up to 51%.

When is the cheapest time to fly from Ontario to Costa Rica (ONT - CR)?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ontario to Costa Rica as you normally would.

Cheap Delta flights from Ontario to Costa Rica

Explore cheap flight options specifically provided by Delta for the route between Ontario and Costa Rica. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,899,487 searches. Data last updated May 1, 2024.
Find some of the cheapest Delta flights traveling from Ontario to Costa Rica. Come back soon if you're not finding the exact deal you're looking for.
Sun 5/1910:00 pmONT - SJO
1 stop21h 13mDelta
Fri 5/247:00 amSJO - ONT
1 stop14h 06mDelta
Deal found 4/30$633
Sat 5/185:45 amONT - SJO
2 stops37h 28mDelta
Thu 5/237:00 amSJO - ONT
1 stop14h 06mDelta
Deal found 4/30$643
Sun 5/2612:50 pmONT - SJO
1 stop30h 23mDelta
Fri 5/317:00 amSJO - ONT
1 stop16h 47mDelta
Deal found 4/30$674
Thu 5/912:50 pmONT - SJO
1 stop30h 23mDelta
Tue 5/147:00 amSJO - ONT
1 stop14h 06mDelta
Deal found 4/30$678
Sun 5/126:00 amONT - SJO
1 stop13h 13mDelta
Thu 5/167:00 amSJO - ONT
1 stop16h 47mDelta
Deal found 4/30$679
Mon 5/276:00 amONT - SJO
1 stop13h 13mDelta
Fri 5/317:00 amSJO - ONT
2 stops17h 43mDelta
Deal found 4/30$684
Sun 5/265:45 amONT - SJO
2 stops37h 28mDelta
Fri 5/317:00 amSJO - ONT
2 stops17h 43mDelta
Deal found 4/30$685
Thu 5/95:45 amONT - SJO
2 stops37h 28mDelta
Tue 5/147:00 amSJO - ONT
1 stop14h 06mDelta
Deal found 4/30$688
Fri 5/1010:00 pmONT - LIR
1 stop12h 56mDelta
Mon 5/131:23 pmLIR - ONT
1 stop10h 24mDelta
Deal found 5/1$705

Cheap Avianca flights from Ontario to Costa Rica

Explore cheap flight options specifically provided by Avianca for the route between Ontario and Costa Rica. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,899,487 searches. Data last updated May 1, 2024.
Have a look at some of the cheapest available Avianca flights departing from Ontario and landing in Costa Rica. If these deals don't fit your criteria, make sure to check back soon as new deals are always added.
Sun 8/1111:30 pmONT - SJO
1 stop10h 55mAvianca
Mon 8/199:35 amSJO - ONT
1 stop13h 25mAvianca
Deal found 4/29$335
Sat 10/2611:30 pmONT - SJO
1 stop8h 10mAvianca
Mon 11/46:10 amSJO - ONT
2 stops17h 30mAvianca
Deal found 4/30$336
Sun 10/1311:30 pmONT - SJO
1 stop8h 10mAvianca
Sun 10/206:10 amSJO - ONT
2 stops16h 50mAvianca
Deal found 5/1$337
Sun 8/1811:30 pmONT - SJO
1 stop8h 10mAvianca
Mon 9/26:10 amSJO - ONT
2 stops16h 50mAvianca
Deal found 4/30$340
Thu 9/1911:30 pmONT - SJO
1 stop10h 55mAvianca
Thu 9/269:35 amSJO - ONT
1 stop13h 25mAvianca
Deal found 4/30$355
Sat 10/511:30 pmONT - SJO
1 stop10h 55mAvianca
Mon 10/146:10 amSJO - ONT
2 stops16h 50mAvianca
Deal found 4/30$357
Sun 5/1911:30 pmONT - SJO
1 stop8h 10mAvianca
Sun 5/265:10 amSJO - ONT
1 stop17h 50mAvianca
Deal found 4/30$375
Sun 7/2811:30 pmONT - SJO
1 stop10h 55mAvianca
Sun 8/49:35 amSJO - ONT
1 stop13h 25mAvianca
Deal found 4/30$377
Tue 5/1411:30 pmONT - SJO
1 stop10h 55mAvianca
Thu 5/239:35 amSJO - ONT
1 stop13h 25mAvianca
Deal found 4/30$387

Cheap Ontario to Costa Rica flights in May & June 2024

Find cheap flight options from Ontario to Costa Rica specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,899,487 searches. Prices were last updated on May 1, 2024.
These are some of the most attractive deals on flights from Ontario to Costa Rica in 2024. Check back soon for alternative fares.
Tue 5/1412:39 pmONT - SJO
2 stops19h 07mMultiple Airlines
Thu 5/231:30 pmSJO - ONT
1 stop9h 30mMultiple Airlines
Deal found 4/30$346
Sun 5/1911:30 pmONT - SJO
1 stop8h 10mAvianca
Sun 5/265:10 amSJO - ONT
1 stop17h 50mAvianca
Deal found 4/30$375
Tue 5/1411:30 pmONT - SJO
1 stop10h 55mAvianca
Thu 5/239:35 amSJO - ONT
1 stop13h 25mAvianca
Deal found 4/30$387
Sun 5/1911:30 pmONT - SJO
1 stop8h 10mAvianca
Sun 5/266:10 amSJO - ONT
2 stops16h 50mAvianca
Deal found 4/30$424
Tue 5/1411:30 pmONT - SJO
1 stop13h 05mAvianca
Tue 5/219:35 amSJO - ONT
1 stop13h 25mAvianca
Deal found 4/30$429
Sat 5/1811:30 pmONT - SJO
1 stop10h 55mAvianca
Sun 5/265:10 amSJO - ONT
1 stop17h 50mAvianca
Deal found 4/30$474
Sat 5/1810:42 amONT - LIR
2 stops26h 43mUnited Airlines
Thu 5/2311:49 amLIR - ONT
1 stop9h 59mUnited Airlines
Deal found 5/1$479
Wed 5/151:36 pmONT - LIR
1 stop24h 49mUnited Airlines
Sat 5/183:27 pmLIR - ONT
2 stops32h 37mUnited Airlines
Deal found 4/30$494
Mon 5/611:30 pmONT - SJO
1 stop8h 10mAvianca
Sat 5/183:30 pmSJO - ONT
1 stop7h 30mAvianca
Deal found 4/30$496

Ontario to Costa Rica 2024 flight deals

Discover exclusive flight deals for travel between Ontario and Costa Rica in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,899,487 searches. Data last updated May 1, 2024.
These are some of the most attractive deals on flights from Ontario to Costa Rica in 2024. Check back soon for alternative fares.
Sun 8/1111:30 pmONT - SJO
1 stop10h 55mAvianca
Mon 8/199:35 amSJO - ONT
1 stop13h 25mAvianca
Deal found 4/29$335
Sat 10/2611:30 pmONT - SJO
1 stop8h 10mAvianca
Mon 11/46:10 amSJO - ONT
2 stops17h 30mAvianca
Deal found 4/30$336
Sun 10/1311:30 pmONT - SJO
1 stop8h 10mAvianca
Sun 10/206:10 amSJO - ONT
2 stops16h 50mAvianca
Deal found 5/1$337
Sun 8/1811:30 pmONT - SJO
1 stop8h 10mAvianca
Mon 9/26:10 amSJO - ONT
2 stops16h 50mAvianca
Deal found 4/30$340
Tue 5/1412:39 pmONT - SJO
2 stops19h 07mMultiple Airlines
Thu 5/231:30 pmSJO - ONT
1 stop9h 30mMultiple Airlines
Deal found 4/30$346
Thu 9/1911:30 pmONT - SJO
1 stop10h 55mAvianca
Thu 9/269:35 amSJO - ONT
1 stop13h 25mAvianca
Deal found 4/30$355
Sat 10/511:30 pmONT - SJO
1 stop10h 55mAvianca
Mon 10/146:10 amSJO - ONT
2 stops16h 50mAvianca
Deal found 4/30$357
Thu 11/711:30 pmONT - SJO
1 stop7h 10mAvianca
Sat 11/169:35 amSJO - ONT
1 stop14h 05mAvianca
Deal found 4/30$360
Sun 5/1911:30 pmONT - SJO
1 stop8h 10mAvianca
Sun 5/265:10 amSJO - ONT
1 stop17h 50mAvianca
Deal found 4/30$375

Ontario to Costa Rica flights leaving soon

Find last-minute flight options from Ontario to Costa Rica for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,899,487 searches. Data last updated May 1, 2024.
Have a look at some of the flights available from Ontario to Costa Rica departing last-minute. To prevent any unwanted surprises, users should verify their flight info before booking.
Tue 5/1412:39 pmONT - SJO
2 stops19h 07mMultiple Airlines
Thu 5/231:30 pmSJO - ONT
1 stop9h 30mMultiple Airlines
Deal found 4/30$346
Tue 5/1411:30 pmONT - SJO
1 stop10h 55mAvianca
Thu 5/239:35 amSJO - ONT
1 stop13h 25mAvianca
Deal found 4/30$387
Tue 5/1411:30 pmONT - SJO
1 stop13h 05mAvianca
Tue 5/219:35 amSJO - ONT
1 stop13h 25mAvianca
Deal found 4/30$429
Mon 5/611:30 pmONT - SJO
1 stop8h 10mAvianca
Sat 5/183:30 pmSJO - ONT
1 stop7h 30mAvianca
Deal found 4/30$496
Tue 5/1412:59 amONT - SJO
2 stops30h 17mFrontier
Sun 5/199:16 amSJO - ONT
2 stops21h 58mFrontier
Deal found 4/30$531
Mon 5/611:30 pmONT - SJO
1 stop8h 10mAvianca
Thu 5/161:30 pmSJO - ONT
1 stop9h 30mAvianca
Deal found 4/30$543
Sat 5/1111:30 pmONT - SJO
1 stop10h 55mAvianca
Sat 5/189:35 amSJO - ONT
1 stop13h 25mAvianca
Deal found 4/30$571
Tue 5/75:15 amONT - LIR
1 stop9h 10mUnited Airlines
Tue 5/1411:49 amLIR - ONT
1 stop10h 04mUnited Airlines
Deal found 4/30$580
Tue 5/1411:30 pmONT - SJO
2 stops22h 20mAvianca
Wed 5/222:04 amSJO - ONT
2 stops20h 56mAvianca
Deal found 4/30$588

One-way flights to Costa Rica from Ontario

Search for one-way flight options from Ontario to Costa Rica. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,899,487 searches. Data last updated May 1, 2024.
If you're seeking multiple options on one-way flights from Ontario to Costa Rica, be sure to check out these deals, which are updated often. Those seeking round-trip flights from Ontario to Costa Rica should utilize the search form at the the top of the page.
Wed 5/294:19 pmONT - SJO
1 stop15h 27mMultiple Airlines
Deal found 4/30$135
Thu 5/306:11 pmONT - SJO
2 stops37h 35mMultiple Airlines
Deal found 4/30$149
Mon 7/2211:30 pmONT - SJO
1 stop8h 10mAvianca
Deal found 4/30$150
Sun 10/1311:30 pmONT - SJO
1 stop8h 10mAvianca
Deal found 4/30$151
Sun 9/2211:30 pmONT - SJO
1 stop8h 10mAvianca
Deal found 4/30$152
Thu 9/511:30 pmONT - SJO
1 stop10h 55mAvianca
Deal found 5/1$171
Wed 5/297:04 amONT - SJO
2 stops16h 00mMultiple Airlines
Deal found 4/30$176
Sun 8/411:30 pmONT - SJO
2 stops15h 25mAvianca
Deal found 4/30$203
Tue 5/141:36 pmONT - LIR
2 stops21h 34mUnited Airlines
Deal found 4/30$212

Find flights from Ontario to Costa Rica within your budget

Customize your flight search to find flights from Ontario to Costa Rica that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,899,487 searches. Data last updated May 1, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$335 - $633

Route

Depart

Return

Price

OntarioSan José Juan Santamaria Intl

ONT - SJO

ONTSJO

Ontario

Sun 8/11

1 stop10h 55m

San José Juan Santamaria Intl

Mon 8/19

1 stop13h 25m

$335

OntarioSan José Juan Santamaria Intl

ONT - SJO

ONTSJO

Ontario

Sat 10/26

1 stop8h 10m

San José Juan Santamaria Intl

Mon 11/4

2 stops17h 30m

$336

OntarioSan José Juan Santamaria Intl

ONT - SJO

ONTSJO

Ontario

Sun 10/13

1 stop8h 10m

San José Juan Santamaria Intl

Sun 10/20

2 stops16h 50m

$337

OntarioSan José Juan Santamaria Intl

ONT - SJO

ONTSJO

Ontario

Sun 8/18

1 stop8h 10m

San José Juan Santamaria Intl

Mon 9/2

2 stops16h 50m

$340

OntarioSan José Juan Santamaria Intl

ONT - SJO

ONTSJO

Ontario

Tue 5/14

2 stops19h 07m

San José Juan Santamaria Intl

Thu 5/23

1 stop9h 30m

$346

OntarioLiberia

ONT - LIR

ONTLIR

Ontario

Sat 5/18

2 stops26h 43m

Liberia

Thu 5/23

1 stop9h 59m

$479

OntarioSan José Juan Santamaria Intl

ONT - SJO

ONTSJO

Ontario

Tue 5/14

2 stops30h 17m

San José Juan Santamaria Intl

Sun 5/19

2 stops21h 58m

$531

OntarioLiberia

ONT - LIR

ONTLIR

Ontario

Sat 9/7

1 stop12h 13m

Liberia

Sat 9/14

1 stop10h 24m

$551

OntarioSan José Juan Santamaria Intl

ONT - SJO

ONTSJO

Ontario

Sun 5/19

1 stop21h 13m

San José Juan Santamaria Intl

Fri 5/24

1 stop14h 06m

$633

Flights are sorted by cheapest first

Deals found on 4/29

No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Costa Rica

Get insights into the airlines that provide service to Costa Rica. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Costa Rica. Reviews last updated May 1, 2024.
Read reviews from past customers who have flown Delta, Avianca and American Airlines from Ontario to Costa Rica. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.1
Very good
10,874 reviews
Check prices

Comfort

7.9

Boarding

8.2

Food

7.4

Overall

8.1

Entertainment

8.0

Crew

8.6

Reviews

1 / 10

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

Delta
8.1
Very good
10,874 reviews
Delta
8.1
Very good
10,874 reviews
Check prices

Comfort

7.9

Boarding

8.2

Food

7.4

Overall

8.1

Entertainment

8.0

Crew

8.6

Reviews

1 / 10

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

Copa Airlines
8.0
Very good
2,828 reviews
Delta
8.1
Very good
10,874 reviews
Check prices

Comfort

7.9

Boarding

8.2

Food

7.4

Overall

8.1

Entertainment

8.0

Crew

8.6

Reviews

1 / 10

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

JetBlue
7.6
Good
4,561 reviews
Delta
8.1
Very good
10,874 reviews
Check prices

Comfort

7.9

Boarding

8.2

Food

7.4

Overall

8.1

Entertainment

8.0

Crew

8.6

Reviews

1 / 10

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

WestJet
7.6
Good
2,970 reviews
Delta
8.1
Very good
10,874 reviews
Check prices

Comfort

7.9

Boarding

8.2

Food

7.4

Overall

8.1

Entertainment

8.0

Crew

8.6

Reviews

1 / 10

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

Avianca
7.5
Good
3,883 reviews
Delta
8.1
Very good
10,874 reviews
Check prices

Comfort

7.9

Boarding

8.2

Food

7.4

Overall

8.1

Entertainment

8.0

Crew

8.6

Reviews

1 / 10

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

Related info for your journey

Find useful and relevant information for your journey from Ontario to Costa Rica. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Ontario to Costa Rica?

    If you book a flight to Costa Rica from Ontario, you will be flying from Ontario, which is the city’s only airport. Ontario (ONT) is located 3.1 mi from the center of Ontario.

  • Can I find flights from Ontario to Costa Rica for under $400 on Cheapflights?

    Yes, there are multiple flights from Ontario to Costa Rica for under $400. The cheapest flight booked recently is on Avianca for just $335, but on average you can expect to pay $395.

  • Are there last-minute flights available from Ontario to Costa Rica for under $400?

    There are currently 20+ open flights from Ontario to Costa Rica within the next 7 days for less than $400.

  • What are the cheapest airlines to fly from Ontario to Costa Rica one-way?

    To fly one-way, consider booking your trip with Avianca, which is currently one of the cheapest options available, starting at $150. United Airlines flights start at $212 while deals on JetBlue start at $226 one-way.

  • What are the most popular airlines that fly from Ontario to Costa Rica?

    Before booking your flight from Ontario to Costa Rica check out the most popular airlines for this route: American Airlines, Avianca or United Airlines.

  • What does ONT to SJO mean?

    ONT and SJO are unique codes to identify airports used in the aviation industry. They are defined by IATA (International Air Transport Association) and are commonly called IATA codes. ONT to SJO refers to a flight route from Ontario Airport to San José Juan Santamaria Intl Airport. Liberia Airport (LIR), Limon Airport (LIO), San José Tobias Bolanos Intl Airport (SYQ), Tamarindo Airport (TNO), Buenos Aires Airport (BAI) are other airports near this flight route and their unique identifiers/IATA codes.

  • Can I find deals for flights from Ontario to Costa Rica that include extra baggage allowance?

    The amount of baggage you can bring on your Ontario to Costa Rica flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Ontario to Costa Rica with specific airlines?

    Yes, Cheapflights allows you to browse and filter Ontario to Costa Rica flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Ontario to Costa Rica that include hotel bookings?

    Yes. In addition to deals on Ontario to Costa Rica flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Costa Rica?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Costa Rica.

  • Can I find deals for business class flights from Ontario to Costa Rica?

    Yes. Cheapflights offers flight deals from Ontario to Costa Rica by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Ontario to Costa Rica that allow pets onboard?

    Many airlines flying from Ontario to Costa Rica offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Ontario to Costa Rica?

    Yes, you can often find last-minute deals on Ontario to Costa Rica flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Ontario to Costa Rica flight deals updated?

    The Ontario to Costa Rica flight deals you see on this page were last updated on 5/1.

See more FAQs

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Alternative routes for Ontario to Costa Rica
See prices for flight routes from nearby airports that may be better suited for you.

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Top 3 airlines flying from Ontario to Costa Rica

Discover the top 3 airlines that operate flights from Ontario to Costa Rica. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,899,487 searches. Data last updated May 1, 2024.
AirlineCheapestAverageFlexibilityOn-time
AviancaCheapest$264Average$392FlexibilityNo cancel feeOn-time71%
Search Avianca flights
United AirlinesCheapest$370Average$574FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
American AirlinesCheapest$482Average$683FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
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Ontario to Angeles City flights

Search flights from Ontario to Costa Rica by cabin class

Find flights from Ontario to Costa Rica, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class
Business Class
Prem Econ Class
Economy Class

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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Ontario to Costa Rica?

Cheapflights makes it easy to find Ontario to Costa Rica flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Ontario to Costa Rica?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Ontario to Costa Rica for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Ontario to Costa Rica with no change fees?

Yes, we can. To see specific flights from Ontario to Costa Rica with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Ontario to Costa Rica become cheaper?

Yes! Start tracking prices for Ontario to Costa Rica flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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